Table 2.
Characterization of the third molars extracted and surgical aspects among the study groups
| Placebo | p value | Nimesulide | p value | |||
|---|---|---|---|---|---|---|
| w/o LLLT | w/ LLLT | w/o LLLT | w/ LLLT | |||
| Eruption status | ||||||
| Fully erupted | 0 (0.0%) | 0 (0.0%) | 1.000a | 1 (5.0%) | 1 (5.0%) | 0.762a |
| Impacted | 10 (100.0%) | 20 (100.0%) | 19 (95.0%) | 19 (95.0%) | ||
| Ramus relationship | ||||||
| Class I | 0 (0.0%) | 0 (0.0%) | 1.000a | 2 (10.0%) | 2 (10.0%) | 1.000a |
| Class II | 20 (100.0%) | 20 (100.0%) | 18 (90.0%) | 18 (90.0%) | ||
| Relationship to the second molar | ||||||
| A | 0 (0.0%) | 0 (0.0%) | 1.000a | 2 (10.0%) | 2 (10.0%) | 1.000a |
| B | 20 (100.0%) | 20 (100.0%) | 17 (85.0%) | 17 (85.0%) | ||
| C | 0 (0.0%) | 0 (0.0%) | 1 (5.0%) | 1 (5.0%) | ||
| Angulation | ||||||
| Horizontal | 0 (0.0%) | 1 (5.0%) | 1.000a | 6 (30.0%) | 8 (40.0%) | 0.766a |
| Vertical | 20 (100.0%) | 19 (95.0%) | 11 (55.0%) | 10 (50.0%) | ||
| Mesioangular | 0 (0.0%) | 0 (0.0%) | 3 (15.0%) | 2 (10.0%) | ||
| Proximity to the inferior alveolar nerve | ||||||
| Absent | 20 (100.0%) | 20 (100.0%) | 1.000a | 14 (70.0%) | 15 (75.0%) | 1.000a |
| Root darkening | 0 (0.0%) | 0 (0.0%) | 6 (30.0%) | 5 (25.0%) | ||
| Surgical aspects | ||||||
| Number of anesthetic cartridges used | 2.0 ± 0.0 | 2.0 ± 0.0 | 1.000b | 2.1 ± 0.2 | 2.0 ± 0.0 | 0.317b |
| Surgical time (minutes)* | 5.9 ± 3.8 | 5.33 ± 3.79 | 0.081b | 10.0 ± 6.2 | 11.6 ± 7.2 | 0.235b |
| Bone sectioning | 5 (25.0%) | 3 (15.0%) | 0.695a | 12 (60.0%) | 14 (70.0%) | 0.741a |
| Pernambuco index | ||||||
| Values (scores) | 12.33 ± 0.5 | 13.26 ± 2.6 | 0.628a | 12.33 ± 0.5 | 13.26 ± 2.6 | 0.628a |
| Nolla stages | ||||||
| 10 | 13 (65.0%) | 18 (90.0%) | 0.149 a | 13 (65.0%) | 18 (90.0%) | 0.149 a |
| 9 | 6 (30.0%) | 2 (10.0%) | 0.149 a | 6 (30.0%) | 2 (10.0%) | |
| 8 | 1 (5.0%) | 0 (0.0%) | 0.149 a | 1 (5.0%) | 0 (0.0%) | |
*Corresponding time from incision to suture. Captions: Pell & Gregory Class I: the crown of the third molar, in its mesiodistal diameter, is completely in front of the anterior border of the mandibular ramus; Pell & Gregory Class II: the third molar crown is partially within the mandibular ramus; Pell & Gregory position A: the occlusal surface of the third molar is in the same occlusal plane as the adjacent second molar; Pell & Gregory position B: the occlusal surface of the third molar is between the occlusal plane and the cervical line of the adjacent second molar; Pell & Gregory position C: the occlusal surface of the third molar is below the cervical line of the adjacent second molar
ap < 0.05, Fisher’s exact test or Pearson's chi-square test (n, %)
bWilcoxon test (mean ± SD)